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Lower Saltwell Rd over Middle Frk Rockcastle Ck

Martin County, Kentucky · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Lower Saltwell Rd over Middle Frk Rockcastle Ck in Martin County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2011).
Its listed owner is the county highway agency.
It is one of 38 of the 70 inventoried bridges in Martin County rated fair (54.3%); 10 (14.3%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 69 ft
Location	0.2 Mi NE Jct Ky 645/KY 3
NBI structure number	080C00009N
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.

Bridge	Built	Vehicles/day	Condition
Ky-40 over Rockcastle Creek	1953	4,804	Poor
Ky-645 over Middle Fork	2004	4,537	Good
Ky-645 over Becca Liz Ln	2005	4,537	Good
Ky-645 over KY-40 & Coldwater Fork	2010	4,537	Good
Ky-645 Ramp Ky-40 over Coldwater Fork	2006	4,537	Good
Ky 40 over Buck Creek	1929	4,308	Good